6 quarts for sure!!!!!!! WARNING JUST LIKE MY O2 GT WHERE THEY CHANGED THE OIL PAN IN 01 FROM 5 QTS TO 6QTS AND DIDN'T CHANGE THE DIPSTICK TO REFLECT THE CHANGE ONLY PUT IN 6QTS....NOT 61/2 OR 7 LIKE MOST WOULD TELL YOU.......................
Congrats on overfilling your oil and losing HP and maybe ruining your engine by foaming the oil. This is a known issue with the 4.6 but do as you please.............
6qts with filter read your manual it doesn't lie but the oil pan change caused the false reading of half way between max/min.
If Im not mistaken I read somewhere to use 6.4 Qts. I think it was in the Chilton manual for the 96 4.6s with manual tranny. Is 99+ any different, will it hurt to only use 6 instead of buying a 7th quart and not using it all?